A Modified Microburet for Topical Application of Insecticides to the Onion Maggot, Hylemya antiqua (Meig.)1

Elmosa, Husein M.; King, Herman L.; Guyer, G. E.

doi:10.1093/jee/52.4.683

Cited by 6 publications

(2 citation statements)

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“…Following this toxicity index, the relative toxicity may be put in the order: endrin > aldrin > heptachlor > cis-chlordane > trans-chlordane > beta-endosulfan > photo-cis-chlordane > photo-trans-chlordane. This order of toxicity agrees with the order of toxicity measured on the basis of LD 50 values (Guthrie, 1954;Cunnigham and Edler, 1955;Tamashiro and Sherman, 1955;Martin, 1958;Elmosa et al, 1959;Lyon, 1959;Merkel, 1962;Toppozada et al, 1969) for different insects. The LD 50 values of various cyclodiene insecticides for different insect species are shown in Table 6.…”

Section: Resultssupporting

confidence: 86%

Role of molecular geometry, valence charge distribution and vibrational modes in bioactivity of cyclodiene insecticides

Saxena

Gupta

2005

J of Applied Toxicology

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Fourier transform infrared spectral measurement and complete normal mode calculations have been carried out for heptachlor and wedge modes have been identified. In addition, valence charge distributions have been obtained for aldrin, endrin, heptachlor, beta-endosulfan, cis-chlordane, trans-chlordane, photo-cis-chlordane and photo-trans-chlordane using CNDO/2 (complete neglect of differential overlap) molecular orbital calculations. A toxicity parameter has been defined as the product of the charge distribution and surface area of the corresponding active wedges, depending on the interacting structural features. The variation of this toxicity parameter is generally in order and in agreement with the reported measurements based on the corresponding order of observed LD50 values. Because of the structural features, the toxicity in these cases is a surface phenomenon rather than a volume effect as in the case of Gammexane, wherein the insecticide binds itself to membrane channels. Because the biological activity is a dynamic rather than a static phenomenon, it is expected that the normal modes involving the wedge atoms play an important role.

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Section: Resultssupporting

confidence: 86%

Role of molecular geometry, valence charge distribution and vibrational modes in bioactivity of cyclodiene insecticides

Saxena

Gupta

2005

J of Applied Toxicology

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“…As most reports on resistance to insecticides among root-infesting species of diptera resulted from assays on adults (McClanahan et al 1958;Elmosa et al 1959;Harris et al 1962), it was of interest to consider the insecticide tolerance of the larval stage against which control treatments are primarily directed. McClanahan et al (1958) reported that maggots and adults of H. antiqun were highly tolerant to aldrin 5 years after broadcast treatments were used for control.…”

Section: Discussionmentioning

confidence: 99%

An Assay for Determining Insecticide Tolerance of Onion Maggot Larvae

Allen¹

1967

Can Entomol

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An assay procedure for estimating the dosage–response relationship of early instar larvae of the onion maggot, Hylemya antiqua (Meigen), to insecticides is reported. The method gave reproducible results for diazinon on several test dates. The assay showed that maggots from strains collected at East St. Paul and Portage La Prairie, Man., tolerated 50 to 108 times as much heptachlor as a susceptible strain from Chatham, Ont. Previously, adults from the Manitoba strains had been shown to be highly tolerant to heptachlor. The potencies of Bayer 37289 and Bayer 25141 relative to diazinon were 0.5 and 0.1, respectively, for a heptachlor-tolerant strain. For NIA 10242 and Nemacide, equivalent values were 0.9 and 0.2 for this strain and 1.0 and 0.2 for the susceptible Chatham strain. The slight differences in the tolerance to these insecticides, shown for the two strains of larvae, were not associated with their tolerance to heptachlor.

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Insecticide Resistance in Soil Insects Attacking Crops

Harris¹

1977

Pesticide Management and Insecticide Resistance

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A Modified Microburet for Topical Application of Insecticides to the Onion Maggot, Hylemya antiqua (Meig.)1

Cited by 6 publications

References 0 publications

Role of molecular geometry, valence charge distribution and vibrational modes in bioactivity of cyclodiene insecticides

Role of molecular geometry, valence charge distribution and vibrational modes in bioactivity of cyclodiene insecticides

An Assay for Determining Insecticide Tolerance of Onion Maggot Larvae

Insecticide Resistance in Soil Insects Attacking Crops

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